@CHARSET "UTF-8";
	*{
	
	margin: 0;
    padding: 0;
	font-family:"微软雅黑";
	}
	body{
		width: 1000px;
		height: 550px;
	}
	.left{
		border:2px solid gray;
		width: 30%;
		height: 100%;
		margin: 5px 80px;
		
	}
	.left p{
		margin: 30px 20px;
		color: black;
	}
	.left-list{
		border:2px solid gray;
		width: 70%;
		height:80%;
		margin: 20px auto;
		overflow-y:scroll;
	}
	.right{
		border:2px solid gray;
		width: 60%;
		height: 100%;
		margin: -559px 480px;
	}
	.right-content{
		width: 100%;
		height:93%;
		overflow-y:scroll;
		color: red;
	}
	ul{list-style-type:none;}
       #tree a:link{text-decoration:none;}
       .menu{
       	margin-left: 30px;
       	margin-top: 30px;
       }
     .menu li ul{
     	margin-left: 30px;
     }
  /*     .menu li a{
      	color: black;
      } */
      .menu li ul li ul{
     	margin-left: 30px;
     }
    /*     .menu li ul li a{
        color: black;
        } */
      .menu li ul li ul li ul{
     	margin-left: 30px;
     }
	.btn{
		width: 90px;
		height: 30px;
		border-radius:10px;
		border: 1px solid blue;
		float: right;
		margin-right: 20px;
	}
